Cn. Ocallaghan et al., THE REACTION OF ALDEHYDES AND AMMONIUM ACETATE WITH SOME ACETONYL ANDPHENACYL DERIVATIVES - A CORRECTION, Journal of the Chemical Society. Perkin transactions. I, (7), 1993, pp. 755-757
The products formed from the reaction of aromatic aldehydes and ammoni
um acetate with pentane-2,4-dione are 2,4-diaryl-6-methyl-1,2,3,4-tetr
ahydropyrimidines; when 1-phenyl-2-phenylsulfonylethan-1-one is used i
nstead of pentane-2,4-dione, hyleneamino-1-phenyl-2-phenylsulfonylprop
an-1-ones are formed. There is no evidence of oxazine formation.